Accton Technology ES4626 - Manual (Page 707)

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Switch (Config) #interface vlan 3
Switch (Config-If-Vlan3) # ipv6 address 2000:40:1:1::1/64
Switch (Config-If-Vlan3) # ipv6 pim sparse-mode
17.2.5 PIM-SM Troubleshooting
When configuring and using PIM-SM protocol, PIM-SM protocol may fail to work
normally due to physical connections, incorrect configuration and so on. So, users shall
note the following points:
z Assure the physical connection is correct.
z Assure the Protocol of Interface and Link is UP (use show interface command);
z Unicast route shall be used to carry out RPF examination for multicast protocol. So
the correctness of unicast route shall be guaranteed above all.
z PIM-SM Protocol requires supports of RP and BSR, therefore you should use show
ipv6 pim bsr-router first to see if there is BSR information. If not, you need to check
if there is unicast routing leading to BSR.
z Use show ipv6 pim rp-hash command to check if RP information is correct; if there
is no RP information, you still need to check unicast routing;
If all attempts fail to solve the problems on PIM-SM, then use debug commands
such as debug ipv6 pim/ debug ipv6 pim bsr, copy DEBUG information in 3 minutes and
send to Technology Service Center.
17.2.5.1 Command for Monitor and debug
17.2.5.1.1 debug ipv6 pim events
Command: debug ipv6 pim events
no debug ipv6 pim events
Function: Enable or Disable pim events debug switch
Parameter:
None
Default: Disabled
Command Mode: Admin Mode and Global Mode
Usage Guide: Enable “pim events debug” switch and display events information about
pim operation.
Example: Switch# debug ipv6 pim events
17.2.5.1.2 debug ipv6 pim mfc
Command: debug ipv6 pim mfc（in|out|）
no debug ipv6 pim mfc（in|out|）
Function:
Enable or Disable pim mfc debug switch